Merge branch 'samsung_dma' into next

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
new file mode 100644
index 000000000000..4c1a363526cf
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -0,0 +1,63 @@
+/* arch/arm/plat-samsung/include/plat/dma-ops.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Samsung DMA support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __SAMSUNG_DMA_OPS_H_
+#define __SAMSUNG_DMA_OPS_H_ __FILE__
+
+#include <linux/dmaengine.h>
+
+struct samsung_dma_prep_info {
+	enum dma_transaction_type cap;
+	enum dma_data_direction direction;
+	dma_addr_t buf;
+	unsigned long period;
+	unsigned long len;
+	void (*fp)(void *data);
+	void *fp_param;
+};
+
+struct samsung_dma_info {
+	enum dma_transaction_type cap;
+	enum dma_data_direction direction;
+	enum dma_slave_buswidth width;
+	dma_addr_t fifo;
+	struct s3c2410_dma_client *client;
+};
+
+struct samsung_dma_ops {
+	unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info);
+	int (*release)(unsigned ch, struct s3c2410_dma_client *client);
+	int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info);
+	int (*trigger)(unsigned ch);
+	int (*started)(unsigned ch);
+	int (*flush)(unsigned ch);
+	int (*stop)(unsigned ch);
+};
+
+extern void *samsung_dmadev_get_ops(void);
+extern void *s3c_dma_get_ops(void);
+
+static inline void *__samsung_dma_get_ops(void)
+{
+	if (samsung_dma_is_dmadev())
+		return samsung_dmadev_get_ops();
+	else
+		return s3c_dma_get_ops();
+}
+
+/*
+ * samsung_dma_get_ops
+ * get the set of samsung dma operations
+ */
+#define samsung_dma_get_ops() __samsung_dma_get_ops()
+
+#endif /* __SAMSUNG_DMA_OPS_H_ */